鉴于MyBatis暂时不会用，所以用刚学的SpringJDBC代替，也很简洁。以下贴出几个重要的代码。
1.UserDaoImpl数据库操作实现类
1 package com.wxy.dao.impl;
2
3 import com.wxy.pojo.User;
4 import org.springframework.jdbc.core.BeanPropertyRowMapper;
5 import org.springframework.jdbc.core.JdbcTemplate;
6 import org.springframework.jdbc.core.RowMapper;
7 import org.springframework.stereotype.Repository;
8 import javax.annotation.Resource;
9 import java.util.ArrayList;
10 import java.util.List;
11
12 @Repository("userDao")
13 public class UserDaoImpl{
14 //获取JdbcTemplate实例
15 @Resource(name="jdbcTemplate")
16 private JdbcTemplate jdbcTemplate;
17 public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
18 this.jdbcTemplate = jdbcTemplate;
19 }
20 //执行SQL语句的方法
21 public void execute() {
22 jdbcTemplate.execute("create table account8( id int primary key auto_increment,"
23 + "username varchar(50)," + "balance double)");
24 }
25 //添加用户
26
27 public void addUser(User user) {
28 String sql = "insert into user(id,name,age) value("+user.getId()+",‘"+user.getName()+"‘,"+user.getAge()+")";
29 this.jdbcTemplate.update(sql);
30 }
31 //更新用户信息
32 public void updateUser(User user){
33 String sql = "update user set name=‘"+user.getName()+"‘,age="+user.getAge()+" where id="+user.getId()+"";
34 this.jdbcTemplate.update(sql);
35 }
36 //删除用户
37 public void deleteUser(int id) {
38 String sql = "delete from user where id =?";
39 jdbcTemplate.update(sql,id);
40 }
41 //查询所有用户
42 public List<User> query() {
43 String listSql = "select * from user";
44 RowMapper<User> rowMapper = new BeanPropertyRowMapper<User>(User.class);
45 List<User> users = this.jdbcTemplate.query(listSql,rowMapper);
46 return users;
47 }
48 }
UserDaoImpl
2.UserController数据绑定和页面跳转
1 package com.wxy.controller;
2
3 import com.wxy.dao.impl.ServiceImpl;
4 import com.wxy.pojo.User;
5 import org.springframework.beans.factory.annotation.Autowired;
6 import org.springframework.context.ApplicationContext;
7 import org.springframework.context.support.ClassPathXmlApplicationContext;
8 import org.springframework.stereotype.Controller;
9 import org.springframework.ui.Model;
10 import org.springframework.web.bind.annotation.RequestMapping;
11 import org.springframework.web.bind.annotation.RequestMethod;
12
13 import javax.annotation.Resource;
14 import javax.servlet.http.HttpServletRequest;
15 import javax.servlet.http.HttpServletResponse;
16 import java.util.ArrayList;
17 import java.util.List;
18
19 @Controller("userController")
20 public class UserController {
21 @Resource(name="userService")
22 ServiceImpl userService;
23 public void setUserService(ServiceImpl userService) {
24 this.userService = userService;
25 }
26
27 //跳转添加页面
28 @RequestMapping("touseradd")
29 public String useradd(){ return "useradd"; }
30
31 //执行添加操作，并跳转至成功页面
32 @RequestMapping("/useradd.action")
33 public String add(Model model, User user){
34 userService.addUser(user);
35 return "success";
36 }
37
38 //跳转至修改页面
39 @RequestMapping("/touserupdate")
40 public String userupdate(){ return "userupdate"; }
41
42 //执行修改操作
43 @RequestMapping("/userupdate.action")
44 public String update(User user){
45 userService.updateUser(user);
46 return "success";
47 }
48
49 //跳转至查询页面
50 @RequestMapping("/touserlist")
51 public String userselect(){ return "userlist"; }
52
53 //执行查询操作
54 @RequestMapping("/userselect.action")
55 public String query(HttpServletRequest request, HttpServletResponse response) {
56 List looklist = userService.query();
57 request.setAttribute("looklist", looklist);
58 return "forward:touserlist";
59 }
60
61 //执行删除操作
62 @RequestMapping("/delete.action")
63 public String delete(int id){
64 userService.deleteUser(id);
65 return "forward:userselect.action";
66 }
67 }
UserController
3.userlist.jsp显示用户信息
1 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
2 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
3 <html>
4 <head>
5 <title>用户列表</title>
6 </head>
7 <body>
8 <table align="center" border=2>
9 <tr bgcolor="#eeee99">
10 <td>序号</td>
11 <td>Id</td>
12 <td>Name</td>
13 <td>Age</td>
14 <td>选择</td>
15 <td>操作</td>
16 </tr>
17 <c:set var="j" value="1"></c:set>
18 <c:forEach var="lists" items="${requestScope.looklist }">
19 <tr>
20 <td>${j }</td>
21 <td>${lists.id }</td>
22 <td>${lists.name }</td>
23 <td>${lists.age}</td>
24 <td><a href="${pageContext.request.contextPath}/touserupdate?id=${lists.id}">修改</a></td>
25 <td><a href="${pageContext.request.contextPath}/delete.action?id=${lists.id}">删除</a></td>
26 </tr>
27 <c:set var="j" value="${j+1 }"></c:set>
28 </c:forEach>
29 </table>
30 <br>
31 <center>
32 <form action="${pageContext.request.contextPath }/userselect.action">
33 <input type="submit" value="刷新">
34 </form>
35 <form action="${pageContext.request.contextPath }/touseradd">
36 <input type="submit" value="返回添加">
37 </form>
38 </center>
39 </body>
40 </html>
userlist.jsp
4.springmvc-servlet.xml配置
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:mvc="http://www.springframework.org/schema/mvc" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans 7 http://www.springframework.org/schema/beans/spring-beans-4.3.xsd 8 http://www.springframework.org/schema/context 9 http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> 10 <!--<mvc:annotation-driven/>--> 11 <context:annotation-config/> 12 <!--配置数据源--> 13 <bean id="dataSource" 14 class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 15 <property name="driverClassName" value="com.mysql.jdbc.Driver"/> 16 <property name="url" value="jdbc:mysql://localhost:3306/springjdbc"/> 17 <property name="username" value="root"/> 18 <property name="password" value="root"/> 19 </bean> 20 <!--配置JDBC模板--> 21 <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> 22 <property name="dataSource" ref="dataSource"/> 23 </bean> 24 <!--配置注入类--> 25 <bean id="userDao" class="com.wxy.dao.impl.UserDaoImpl"> 26 <property name="jdbcTemplate" ref="jdbcTemplate"/> 27 </bean> 28 <bean id="userService" class="com.wxy.dao.impl.ServiceImpl"> 29 <property name="userDao" ref="userDao"/> 30 </bean> 31 <bean id="userController" class="com.wxy.controller.UserController"> 32 <property name="userService" ref="userService"></property> 33 </bean> 34 <!-- 指定需要扫描的包 --> 35 <context:component-scan base-package="com.wxy.controller"></context:component-scan> 36 <context:component-scan base-package="com.wxy.dao.impl"></context:component-scan> 37 <!-- 定义视图解析器 --> 38 <bean id="viewResolver" 39 class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 40 <!-- 设置前缀 --> 41 <property name="prefix" value="/jsp/"></property> 42 <!-- 设置后缀 --> 43 <property name="suffix" value=".jsp"></property> 44 </bean> 45 </beans>
springmvc-servlet.xml
配置方式XML和注解选用一种即可。
原文地址：https://www.cnblogs.com/wxywxy/p/8723585.html
时间： 2024-10-12 12:17:27